Bug 1992210 (CVE-2021-34335) - CVE-2021-34335 exiv2: DoS due to FPE in Exiv2::Internal::resolveLens0xffff
Summary: CVE-2021-34335 exiv2: DoS due to FPE in Exiv2::Internal::resolveLens0xffff
Keywords:
Status: NEW
Alias: CVE-2021-34335
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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Depends On: 1992211 1992212 1996173 1996174 1996175
Blocks: 1992216
TreeView+ depends on / blocked
 
Reported: 2021-08-10 18:05 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-08-20 18:15 UTC (History)
4 users (show)

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Description Guilherme de Almeida Suckevicz 2021-08-10 18:05:25 UTC
Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. A floating point exception (FPE) due to an integer divide by zero was found in Exiv2 versions v0.27.4 and earlier. The FPE is triggered when Exiv2 is used to print the metadata of a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when printing the interpreted (translated) data, which is a less frequently used Exiv2 operation that requires an extra command line option (`-p t` or `-P t`). The bug is fixed in version v0.27.5.

Reference:
https://github.com/Exiv2/exiv2/security/advisories/GHSA-pvjp-m4f6-q984

Upstream patch:
https://github.com/Exiv2/exiv2/pull/1750

Comment 1 Guilherme de Almeida Suckevicz 2021-08-10 18:05:45 UTC
Created exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1992211]


Created mingw-exiv2 tracking bugs for this issue:

Affects: fedora-all [bug 1992212]


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